GERG-2008 (natural gas / LNG) property package

Reference multiparameter Helmholtz EoS (GERG-2008-family, via CoolProp HEOS) for natural-gas / LNG mixtures — cryogenic density and phase behaviour several percent more accurate than the cubics. Natural-gas / light-hydrocarbon components only.

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The math it solves

See the flash and VLE equations this package drives — the governing equations, a cited derivation, and the exact Jacobian:

rachford rice flash

Flowsheets that use it

Cryogenic NGL recovery (GERG-2008 EoS)

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